On Fri, 18 May 2001, Pinxteren R.van (Ramses) wrote: > Hi all, > > perhaps a stupid question,. I a certain that it is documented somewhere in > my archive, but how much current can I draw from the user port of a breadbox > C64.. and is it less or more than the newer versions C64? The user port is connected directly to the 6526. The data sheet says it will drive 2 TTL loads. The electrical characteristics table says that it will source 0.2 mA minimum and 1.0 mA typical at high level (> 2.4 V) and sink at least 3.2 mA at low leval (< 0.4 V). - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail cbm-hackers-request@dot.tml.hut.fi.
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